Glytactin swirl 15, chocolate.160 calories per packet.2240 calories per case.For the dietary management of phenylketonuria (pku).Glytactin swirl is a low phenylalanine glycomacropeptide (gmp)- based powdered medical food complete with vitamins and minerals.Each packet contains 15 mg phe per 15 grams of protein, a balanced blend of gmp plus amino acids.Swirl is versatile as it can be mixed as a pudding or a drink.Contains dha and probiotics.Suitable for individuals over 1 year of age.Dispensed by prescription.